2 comments:

Fantastic post! My specific issue was getting this error when opening email from an often used employment search site, careerbuilder.com. The trick was to enter the exact url displayed in the error message, which was "92kh307e.emltrk.com:443". The certificate which Thunderbird picked up [when you click on 'get certificate'] matched the one I could view via the error message box, and the problem is now gone. Thanks again for this tip. Jeff